CVE-2015-5309

Name of the Vulnerable Software and Affected Versions PuTTY versions prior to 0.66

Description The issue is related to an integer overflow in the terminal emulator, which can be triggered by a remote attacker using an ECH (erase characters) escape sequence with a large parameter value. This can cause a denial of service due to memory corruption or potentially allow the execution of arbitrary code.

Recommendations For versions prior to 0.66, update to version 0.66 or later to resolve the issue. As a temporary workaround, consider restricting access to the terminal emulator until the update is applied.